Commit 34bdf809 authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Dmitry Baryshkov
Browse files

dt-bindings: display/msm: dsi-controller-main: Add SM8750 



Add DSI controller for Qualcomm SM8750 SoC which is quite different from
previous (SM8650) generation.

It does not allow the display clock controller clocks like "byte" and
"pixel" to be reparented to DSI PHY PLLs while the DSI PHY PLL is not
configured (not prepared, rate not set).  Therefore
assigned-clock-parents are not working here and driver is responsible
for reparenting clocks with proper procedure.  These clocks are now
inputs to the DSI controller device.

Except that SM8750 DSI comes with several differences, new blocks and
changes in registers, making it incompatible with SM8650.

Reviewed-by: default avatarRob Herring (Arm) <robh@kernel.org>
Signed-off-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/659609/
Link: https://lore.kernel.org/r/20250618-b4-sm8750-display-v7-2-a591c609743d@linaro.org


Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
parent c257d2c8

Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml

+49 −5
Original line number Diff line number Diff line
@@ -42,6 +42,7 @@ properties: 
              - qcom,sm8450-dsi-ctrl

              - qcom,sm8550-dsi-ctrl

              - qcom,sm8650-dsi-ctrl

              - qcom,sm8750-dsi-ctrl

          - const: qcom,mdss-dsi-ctrl

      - enum:

          - qcom,dsi-ctrl-6g-qcm2290
@@ -70,11 +71,11 @@ properties: 
       - mnoc:: MNOC clock

       - pixel:: Display pixel clock.

    minItems: 3

    maxItems: 9

    maxItems: 12



  clock-names:

    minItems: 3

    maxItems: 9

    maxItems: 12



  phys:

    maxItems: 1
@@ -109,7 +110,8 @@ properties: 
    minItems: 2

    maxItems: 4

    description: |

      Parents of "byte" and "pixel" for the given platform.

      For DSI on SM8650 and older: parents of "byte" and "pixel" for the given

      platform.

      For DSIv2 platforms this should contain "byte", "esc", "src" and

      "pixel_src" clocks.
@@ -218,8 +220,6 @@ required: 
  - clocks

  - clock-names

  - phys

  - assigned-clocks

  - assigned-clock-parents

  - ports



allOf:
@@ -244,6 +244,9 @@ allOf: 
            - const: byte

            - const: pixel

            - const: core

      required:

        - assigned-clocks

        - assigned-clock-parents



  - if:

      properties:
@@ -266,6 +269,9 @@ allOf: 
            - const: byte

            - const: pixel

            - const: core

      required:

        - assigned-clocks

        - assigned-clock-parents



  - if:

      properties:
@@ -288,6 +294,9 @@ allOf: 
            - const: pixel

            - const: core

            - const: core_mmss

      required:

        - assigned-clocks

        - assigned-clock-parents



  - if:

      properties:
@@ -309,6 +318,9 @@ allOf: 
            - const: core_mmss

            - const: pixel

            - const: core

      required:

        - assigned-clocks

        - assigned-clock-parents



  - if:

      properties:
@@ -346,6 +358,35 @@ allOf: 
            - const: core

            - const: iface

            - const: bus

      required:

        - assigned-clocks

        - assigned-clock-parents



  - if:

      properties:

        compatible:

          contains:

            enum:

              - qcom,sm8750-dsi-ctrl

    then:

      properties:

        clocks:

          minItems: 12

          maxItems: 12

        clock-names:

          items:

            - const: byte

            - const: byte_intf

            - const: pixel

            - const: core

            - const: iface

            - const: bus

            - const: dsi_pll_pixel

            - const: dsi_pll_byte

            - const: esync

            - const: osc

            - const: byte_src

            - const: pixel_src



  - if:

      properties:
@@ -369,6 +410,9 @@ allOf: 
            - const: core_mmss

            - const: pixel

            - const: core

      required:

        - assigned-clocks

        - assigned-clock-parents



unevaluatedProperties: false